Shoe-blank-skiving machine



E. E. LANE. SHOE'BLA'NKS-KIVING MACHINE.

APPLICATION FILEDIJULY 18,1917. RENEW ED JULY 30. I919- Patented June 28, 1921 Wang E. E. LANE. SHOE BLANKSKIVING MACHINE. APPLICATION HLED'J'ULY 18.1917; nmswmmn 30.1919.

Patented June 28,1921.

6 snez'rs-sunr 2 5,5. LANE. SHOE BLANK SKIVING MACHINE. 1 "APPLICATION 1,382,656.

FILED JULY 18,1917- RENEWED JULY 30, 1919.

PatenfedJune 28, 1921.

6 SHEETS-SHEET 3- r J 1 v E. E. LANE.

SHOE BLANK SKJVING MACHINE. APPLICATION FILED JULY 18. 191?. RENEWED-JULY 30, 1919.

Patented June 28, 1921.

6 SHEETS-SHEET 4- I 204 x W I I "E. E.'LA NE SHOE BLANKiSKIVING MACHINE; v I rmgmbn man JULY-{8,1912- RENEWED JULY 30. 19:9. I 1 3382,656; PatentedJune 28, 1921.

EfSHEETS-SHEET 6.

UNITED STATES PATENT-OFFICE.

ELMER E. LANE, or sourn BERwicK. MAINE, nssrcivon, BY MESH-ASSIGNMENTS,

TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEVJ JERSEY, A

CORPORATION OF NEW JERSEY.

SHOE-BLANK-SKIVING MACHINE.

Application filed July 18, 1917,'Serial No. 181,445. Renewed July 30, 1918. Serial No. 314,270.

T 0 all w ham it may concern:

Be it known that I, ELMER E. LANE, a citizen of the United States, residing at South Berwick, in the county of York and State of Maine, have invented certain new and useful Improvements in Shoe-Blank-Skiving Machinesyand I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to whichit appertains, to make and use the same.

This invention relates to shoe blank skiving machines, and more particularly to a machine for shankingout or for evening and shanking out shoe soles.

The object of the invention is to provide a skiving machine of improved construction and mode of operation by which a predetermined portion of a blank may be accurately skived.

W'ith this object in view 'one feature of the V invention contemplates the provision in a skiving machine'having a skiving knife, a pressure roll, a die roll, means to rotate the rolls continuously, and means to advance blanks to the rolls, of a matrix movably mounted on the die roll and means to-control the movement of the matrix to bring it into position to operate upon a predetermined portion of the blank. Tn the preferred form of the invention a pair of matrices is employed for positioning opposite sides of the shank portion of the sole to be skived, and

these matrices are secured to sleeves which are rotatably mounted on anddriven lndependently of the die roll. The die and pressure rolls rotate continuously and the matrix matrices into operation to bring them into position on the shank portionof the sole as the sole is advanced between the rolls. The diameter of the die and pressure rolls is small to permit the cutting edge of the skiv- 1s .ing knife to be positioned close to the line of centers of the rolls, so that the die roll makes two revolutions while the'sole is being treated and the matrix makes one-revolution and is stopped in a position ready tooperate on' sion for adjustment whereby the positionof engagement of the matrix with the sole may be varied for treating different kinds of soles. 1

Another feature of the invention contemplates the provision in a skiving machine having a skiving knife and a' pressure roll, of a die roll having a uniform diameter, means for rotating the rolls to advance a sole across the skiving knife, and a matrix movably mounted on the die roll to cooperate with the die roll in positioning a sole, whereby the sole will be skived and evened simultaneously as it is advanced across the .skiving knife.

Another feature of the invention contemplates the provision in a skiving machine having a skiving knife and a die roll, of a pressure roll shaft having a series of toothed feeding disks mounted for movementtransversely of said shaft, and means for independently driving each diskl Another feature of the invention contemplates the provisionin a skiving machine having a skiving knife and a die roll, of a feed roll provided with a series of teeth on its periphery, a portion only of the crown of each of said teethbeing pointed, and means for driving the die and pressure rolls to advane-e the blank across the skiving knife. 2; A further feature of the invention contem- 'plates the provision in. a skiving machine having a skiving knife, a pressure roll, a die roll and a feed table for supporting blanks, of a series of perforations. in said table,

blank on the table,

Eperforations to flatten a g the blank across gand means for advancin ithe table to the rolls. I v

A further feature of the invention conftcmplates the provision in having a skiving knife, pressure and die rolls, and a feed table for supporting'blanks 1 in stacked formation, of means for simultaneously feeding right and left soles to the grolls, and means for supporting blanks in separate stacks on the table comprising adjustable side plates for-transversely positioning the blanks in the stacks, and a pressure 5 plate for each stack to force the blanks down against the table.

Specification of Letters Patent. Patented June 28 1921.

driving mechanism is arranged to set'the :IHQHDS for creating a s'uction through said a skiving machine chine embodying the preferred form of the I invention; Fig. 2 is a front elevation of the machine illustrated in Fig 1; Fig. 3 is a top plan view, partly in section. of the machine showing the feed table and dieroll;

Fig. 4 is a detail vertical sectional view,

taken on the line 44 of Fig. 3; Fig. 5 is a vertical sectional view of the pressure and die rolls taken on the, line 5+5 of Fig. 4; Fig. 6 is a detail view of the mutilatod'gears for driving the matrix; Fig. 7 is a plan view 'of the machine partly in section, on the bile 77 of Fig. 1, showing the blank maga- Z1116 and the follower for holdmgthe blanks in stack formation; Fig. Sis an enlarged detailfview showing aportion of a feeding disk of the pressure roll; andFig. 9 is a detail sectional view of Fig. 8. V I

The machine illustrated in the drawings is adapted toeven outsole blanks and skive them in'the'shank portion. The blanks are positioned ina magazine in two. stacks, one stack being right soles and the other stack being left soles, and each stack is presseddown upon a feed tableby a follower. fBlanks from both stacks are advanced simultaneously to the bite of a die roll and a cooperatingpressure rollby means of a reciprocating feed slide. The blanks are held upon the die roll. by the pressure rollin pc-' sition' for the skiving and evening operat ons, and the rotation of the rolls serves to advance the blanks across a skiving knife,

the cutting edge of which is located between therolls at substantially their line of centers. As the soles are advanced against the skiving knife, the portions lying between the toe ends and the ball lines are posh tioned by the die roll so that theynre evened. Atthetime'the ball lines r'eaclitlie skivmg kn fe two sets of matrix projections.v

V shaped .to-form the sk'ivings ateach side of the shanks of the soles, come into contact with the soles, aml as the soles are advanced from theball lines to the breast lines each side of the shanks is skived' and the cent'ral portions of the sol s between the skiv ings' are evened. The matrix projections 1 pass off ofthe soles at the breast lines, and

the heel seats-of the "soles are positioned by the" d e roll to be evened. The die and pressure rolls are continuously rotated and make two revolutions while operating upon a blank. The matrix projections a reop'erated' to come into position upon the shank portion taken on theline 9-4) naled between of the sole, make one revolution and stop ready for the next skiving operation, while the die and pressure rolls complete thesecbearings 16 and 18 formed on the opposite sides of the machine frame,. and has a threaded connection in the bearing 16 with a driving gear 20 from which the shaft may be disconnected to be removed from the bears ings. The evening cylinder 14 has a vuniform diameter and is arranged to position a sole with reference to theskiving knife so that the sole will be skived to a uniform thickness throughout its length."

Toposition the soles so that they maybe shanked out, twosets of matrix projections 22 and 24 (Figs. 4 and 5) are rotatably niount edon the face of the evening cylinder 14, the set of matrix projections 22 .being'constructed for operating on right soles and the set'of matrix projections 24 being constructed for operating upon left soles. The matrix projections are shaped to conformto the convex surfaeeof the evening cylinder" and are attached to sleeves 26', 28 and 30 which are, rotatably mountedfiia grooves formed'on the face of the evening cylinder. To permit the sleeve 28 tobe placed in the groove at the center of the evening cylinder, a portion of the cylinder between the sleeves 28' and 30 is made in the form of 7 to the central sleeve 28q To rotate the Ina-"- trix projections injunison to simultaneously bring them into operationupon right and left soles, gears 32 are formed on the faces of the sleeves 26, 28*and 30 and mesh with gears 34 pinned to a shaft 36 which is jouropposite sides of the' ma'chine frame. 7

The matrixprojections are intermittently.

rotated to bring them into position upon 7 the shank portion of the sole. The intermittent driving mechanism (Figs. 3 and 6') comprises 'a mutilatedgear 38 loosely mounted onqa sleeve 40 inthebaring' 18, and a mutilated gear' 42- which is keyed to a sleeve 44 loosely mounted in a bearing 46' formed in the right-hand side ofthe machine frame (Fig. The gear 38 is locked to the matrix sleeve 30 so that arotation of the gear 38 will impart a simultaneousmovement to the matrix sleeves through the gears 32 and 34. The mutilateol gear 42 serves as a driving gear and has sufficient teeth on. its periphery to impart a complete revolution to the gear 38. When the gear 38 has completed a revolution, an untoothed section 48 on-the gear 42 comes-into contact with an untoothed section on the gear 38 and'locks the gear- 38 from rotation until the section 48 has been moved across the section 50 and the teeth onthegear 42 come into contact with the gear 38 to release it for rotation. The gear 42 is continuously driven at a proper speed to rotate the gear 38 at the same speed as the speed'of rotation of the evening cylinder 14. The. gear 42 makes one revolution while the evening cylinder makes two revolutions so that the gear 38 will make one revolution in unison with the evening cylinder and will be stopped from 'rotationduring the next revolution of the evening cylinderj The pressure or feed roll (Figs. 4-and 5) comprises a series of feeding disks 52 which are loosely mounted on a shaft 54 fixed between opposite sides of the machine frame. Each of-the "feedmg disks has acentral opening of larger diameter-than the. diameterofthe: shaft 54, which-permits the disk-t0 move transversely of the shaft. To hold the feeding disks in pressure position upon Jthe. work, a series of gear teeth 56 are. formed around the periphery of the disks and the disks articulatewitha series of driving gears 58 mounted in front of the feed roll, a series of alining gears 60 mounted at the rear ofthe feed roll and a series of pressuregears 62 mounted above the feed roll. The driving gears 58 (Fig? 4)'-are keyed to a driving shaft 64 which is journaled between opposite sides ofthe machine frame, and the alininggears 60 are loosely mounted on a shaft 66 which isfixed between opposite sides of the machine frame. The pressure gears 62 arezrotatably mounted' between arms 68 (Fig. 4) projecting downwardly from'leaf springs '70 which are supported at their ends by the arms of a yoke 72. The yoke 72 extends across the pressure roll and is mounted on a pair of rods? 4 and? 5 which extend between plates 76 at opposite sides of a magazine supporting frame; Theiends of therod 74 are adjustable-in slots 80 formed in the plates 76 so: that theyoke 72 may be adjusted to movethepressure gears 62"towardand from the feeding disks, whereby the pres sure of the feeding disks upon the sole may be "varied. The pressures of the individual feeding disks which engage the different portions of the sole to position item the matrices may be regulated also by using leafsprings "for pressing onr these disks, which have a definite strength or stiffness determined by the pressure required to shape the sole upon 'thematrices. 'When thefeed-in disks yield upon the work, they are constrained i to inove vertically or sub? .stantially in the line of centers of the, die andfeed; rolls by the gears 58 and 60, and the shaft; 54 will not permit the'dislgs to be moved out of mesh with the gears. To assist the feeding disks in positioning a blank on the die roll, a series of resilient stripping fingers 82 are supported at the rear of the feed roll and extend between the feeding disks. The stripping fingers are adjustably mounted on a rod 83 which extends across the feed roll and is supported at its ends in the plates 76.

'When the machine is in operation, the die and pressure rolls are rotated continuously. To drive the die and pressure rolls,

the gear 20 on the die roll shaft (Figs. 1, 2.

3 and 7) meshes with an intermediate gear 84 loosely mounted on a shaft86 (Fig. 3) which extends through the sleeve 44 in the bearing46. The gear 84 meshes with a gear 87 fixed on the feed roll driving shaft 64, and a second gear 88 fixed on the shaft 64 meshes with a gear 90 fixed on the main driving shaft 92. The shaft 92 is, provided with loose and tight pulleys and can be started and stopped at the will of the opera-' tor. To drive the gears 38 and 42 which operate the matrix projections, a timing gear '94 (Fig. 3) is loosely mounted on the'shaft 86 and is connected, by means of a collar 96, with the sleeve 44 upon which the mutilated gear 42 is keyed. The gear 94 meshes with agear 98 which is loosely mounted on a stud shaft 100 projecting outffrom the rights hand side of the machine frame (Fig. 3). The hub of the gear 98 is arranged to have an interlocking connection with the hub of a gear 102 which is loosely mounted on the shaft 100 and meshes with a gear 106 fixed on the end of a feed'sl'ide driving shaft 108 journaled between opposite sides of the machine frame. A gear 110 is fixed to the end of the shaft 108 opposite the gear 106 and meshes with an intermediate gear 112' which, in turn, meshes with the gear 84.

The gear 112 is loosely mounted on a stud shaft 116 which is secured in an arm 118 formed on the machine frame. v V

' :Since the lengthof the shank varies in soles of different sizes and styles of shoes, different matrix projections are employed for shanking outthese soles. The time of j rotation of eachof the different kind of matrix projections must be corrected, with;

relation to the rotation of the die and feed rolls, so that the matrix, projections willconsists of a'pair of bolts 120 passing through slots 122 in the gear 94 and secured in the collar 96, which permits the gear to be adjusted eircuniferentially on the collar. When the bolts 120 are loosened, the driving" carrier.

gears may be rotated by ahand wheel 124 ig.-2 while 'the timing gear stands at rest,- andwhen the die roll is brought into the proper position, relatively to the matrix projections, to have the ,matrices register with the shank portion of a sole, the bolts will be tightened to set the machine ready for operation. I I

'I n' addition to pressing a blank against the die roll, the teeth of the feeding disks on the prcssureroll grip the blank and feed it against the skiving knife. Heretofore trouble has been experienced with toothed feed rolls in that theteeth of 'the'feed roll at the portion of greatest pressure would penetrate too deeply into the blank'and-injure it. 'To avoid mutilation of the blanks, about one-half of the crown ofeach gear tooth 56 ,on the feeding disks is extended to form a sharp feeding point 126 (Figs. 8 and 9), and

the other'half' of the crownis flat to serve as a stop for limiting the penetration of the point 126 into the-blank. The penetration of-the points 126 is sufficient to give'a good grip on the stock to insure-a positive feed of the blank. The teeth on the gears 58, 60 and 62 which mesh with the teeth 56 on the feed ing disks, are specially constructed to provid'e for the extradength of the feeding points 126 on the teeth 56. V

The skiving knife indicated at 128ig. 4) is adjustably clamped upon the upper face of a. knife'carrier 130 which'is held in position uponthe machine frame by bolts 132 which pass throughslots 134 formed at ment of the carrier, and the" carrier is locked V and replaced between therolls without re-' in its adjusted position by the bolts 132. v VVi'th theabove construction'the bolts 132 may be removed, and by rotating the carrier upon the links 136 the knife may be-withdrawn from between the dieand pressure rolls while it is attached to the carrier, to: permit the knife to be removed, sharpened quiring a readjustment ofthe knife with reference to the die roll; During the skiving operation the blanks'pass out, between'the knife and die roll and the waste scrap'is dis charged above the knife. 'To prevent the, waste from being mingled with the blanks a'chute 142 (Figs. 1, 2 and 7) is attached to; the-rear of the knife carrier 130 to conduct the wastef out' to'a point where it may be 7 separately collected.

The sole blanks to be skived are arranged in a magazine in two stacks, one stack being right soles and the "other stack being left soles. The magazine compri ses'a feed table 144 "for supporting the soles, a front wall 146' for longitudinally positioning the soles,

ap air of side gages 148 for transversely positioning the toe ends of the-soles," and a pair of side gages 150 for transversely. po-

sitioning the heel ends of the soles. The feed table 144 has its upper" face approximately on a levelwith the upper side of the die roll and constitutes the upper side ofa closed air-box 152 which is formed onthe machine frame directly behind the die and pressure rolls, The front wall l4'6-is a wall 1 having a plane surface whichextends 'between'side plates 7 6 of the magazine supporting frame." The lower portion 'of'the front wall 146 is an adjustable gate 156 which has itsbottomedge supported above the face of the feed table a distanceslightly greater than the thickness of a sole, and acts as a separator to prevent more than one sole 'ofeach stack from-being advanced to the die andfeedfrollsat atime." A guide 158 is attached to the lowe'redge of the gate and projects toward the die roll to assist in flat ten'ing the blanks as they are advanced to the die and pressure rolls. To adjustthe' gate 156"for"separating; blanks ofdifferent thicknesses, a'hook 160' is secured to the center of the-rear face'o f the gate and is engaged by a lug 162secured to a rod164 journaled between =-pl'ates 7 6. A' square of the rod 164' (Figs. 1" and 2) which is adapted to receive a wrench by whichithe rod may be rotated to raise and; lower the gate 156. The-bearing of'tlie rod adjacent shank 166 is formed on the righthand end the shank 166 is -sp1it andis'provided with a clampingbolt 168 b which the rod-may be locked to hold the gate in any desired position. The-side gages 148 (Figs. 1, 2, 3

and 4) consist'of plates for engaging the inside foreparts of the soles and are adjustable along theifront wall 146- To hold the gage plates in position, rods 170 mounted in carriers 172are-secured'1n lugs 174 formed on the outer face of the gage plates 148 The carriers 172 are slidably mounted onxa horizontalrod 176 connected between the plates 76 toallow the side gages 148 to be adjusted transversely of the feed table; "The heel positioning gages 150: consist of plates adjustably secured to brackets 178 "which are adjustable'both longitudinally-and transversely-of the feed table. Withthe adjustable side gages 148 and-150 the'transver'se position ofthesole on the feed table may be varied to bring the'sole into transverse alinement with the matrix projections, and the angular position of-the sole with relation table.

to the line of feed may be varied to have the ball line of the sole register with the leading edges of the matrix projections.

To assist in holding thestacks of blanks in position against the feed table, presser plates 180 (Figs. 1, 2 and 7) are arranged to rest upon the top of each stack of blanks and are positively forced downwardly to flatten the blanks on the table. The presser plates are attached to followers 182 which are-secured to the lower endof vertically movable rods 184. The rods 184 are slidably mounted in a bracket 186 projecting forwardly from the upper end of the front wall 146. A rack 188 is formed on the side of each of the rods 184 which articulates withgears 190 (Fig. 1) fixed on a shaft 192 journaled in the bracket 186. The shaft 192 15 providedwith a beveled gear 194 which meshes with beveled gears 196 and 198 loosely mounted on a driving shaft 200, which is journaled atthe top of the magazine supporting frame between the side plates 76. The shaft 20O is arranged to be operated to yieldingly hold the presser on the top of the stacks and move plates the plates downwardly in .the magazineas the blanks are skived. The shaft 1s stopped when the soles in the stacks have reached a predetermined level and the direction of rotation automatically reversed to move the presser .plates upwardly to permit new stacks of blanks to be placed in the magazine. After the magazine has been filled,

the shaft 200 is arranged to be set into operation through a foot treadle to force the new stacks of blanks down upon the feed The mechanism for carrying out these operations is substantially the same as that shown and described in the patent to Scott No. 969,987 dated September 13,1910,

and since it does not form a part of this invention it is not described in detailherein. The followers 182 are provided with a'series of slots 202 by which the pressure plates 180 may be transversely adjusted for operating on different styles and sizes of sole blanks.

To assist in flattening the blanks upon the feed table, a series of perforations 204 are formed in the upper face of the table and a strong suction is maintained through the perforations. The perforations 204 are arranged to correspond approximately to the outline of the sole in order that the entire surface of the sole may come under the action of the'suction. To provide for feeding different styles and sizes of blanks, plates having different forms of perforations may be used on the feed table. .To secure an effective suction the air-box 152 (Figs. 1 and 2) under the feed table 144 has a tube 206 secured to bottom wall which is arran ed to be connected with an exhaust fan 208 mounted onthe base of the machine pusher plate or feed slide 210 which is slidably mounted on the to of the,feed' table 144. A pair of rounde slots 212' (Figs. 3 and 7) are formed in the leading edge of the feed slide and project around a considerable portion of the heel endof the soles to hold them in transverse alinement as they are advanced to the die roll. The feed slide 210 is attached to a slide block 214 (Figs. 1 and 2) which is slidably mounted in guides formed in the table 144. A link 216 pivoted to the lower face of the slide block 214 is connected to the upper end ofa'lever 218 whichis pinned to a rock shaft 220 journaled in bearings in the air-box 152. The shaft extends outside of the air-box, and on its outer end is secured a camvlever 224 which carries a' 'cam roll 226-arranged to project into a closed cam pathformed in the side of a cam 228. The cam 228 is loosely mountedon the feed slide driving shaft 108 and is arranged to be connected with the shaft b means of a clutch 230 (Fig. 2) which is sli ably splined on the shaft. To shift the clutch 230 into and out of connection with the cam 226, a, bellcrank lever 232, pivoted at the side of the air-box 152, has one arm connected with the clutch 230 and, the other arm connected with a rod 234 which is operated by a foot treadle, not shown. The clutch 230 can only'be consh aft 108 in which the cam will be rotated in nected with the cam 226 at a position of the timed relation to the rotation of the matrix I 7 While the machine 18 well adapted forsimultaneously shanking out and evening soles, it will operate with equalfacilitv for shanking out soles which have been previously evened. Further, certain features of the-invention are not limited to the use in machines for shanking out or evening shoesoles, but may be used in many other relations.

The operation of the machine has been described in connection with the specific construction of theparts of the machine, and

further description of the operation is believed to be unnecessary. I

roll, a die ro1l,-'a matrix rotatably mounted The preferred form of the invention having been thus described, What is claimedas new, is: 1. A shoe blank skiving machine, having, in combination, a skiving knife, a die roll, a pressure roll, a matrix rotatably mounted on the'die roll means for rotating the rolls, and independent mechanism for rotating the matrix at the same speed as the die roll.

2. A shoe blankskivingmachine, having, in combination, a'skiving knife, a die roll, a pressure roll, means for continuously driving the rolls during the passage of a blank therebetween :for its entire length,a matrix rotatably mounted on the die roll, and means for relatively rotating the matrix and die roll.-

3. A shoe blank skiving machine, having, in'combination, a skiving knife, a pressure roll, a die roll, a sleeve provided With a matrix rotatably mounted on the die roll,

means to rotate the rolls continuously during' the passage of a blank therebetw'een for its entire length, and additional means for rotating the sleeve. v V

5; A shoe blank skiving machine, having, in combination, a skiving knife, a pressure roll, a die roll for operating upon the entire length of the blank,'a matrix for operating on a portion of the length of the blank, said matrix being mounted on the die roll, means for rotating the rolls, and means to rotatethe matrix only vvhenapredetermined portion of a blank is being operatedupon.

5. A shoe blank skiving machine, having, in combinatiom'a skiving knife, a pressure on the die roll, means'to drive'the rolls continuously during the passage of 'a blank 'therebetween for its entire length, and means to rotate Y the matrix intermittently.

6. A shoe blank skiving machine, having, in combination, a skiving knife, a pressure roll, a die roll, means to rotate the rolls continuously, means to advance blanks to the rolls, a matrix movably mounted on the die roll, and means to control the movement of t the matrix to bring it into position to operate on a predetermined portion of the blank.

7. A shoe blank skivmg machine, having, in combination, a sk1v1ngkn1fe,'a pressure roll,

a die roll, a matrix movably mount'edon the 7 die roll and arranged tooperate on a portion of a blank intermediateits ends, means to rotate the rolls continuously during the pass age of a blank therebetween for itsentire length, and means to move the matrix relatively to the die roll to bring the matrix into operation on, a predetermined portion of the blank intermediate its ends. I 8; A shoeblank skiving machine, having,

in combination, a skiving knife, a pressure roll, adie roll, a matrix rotatably mounted onthesurface of the die roll, and arranged to operate on a portion-of ablank intermediate itsends, means to rotate the rolls continuously, means to advance blanks t0 the rolls intermittently, and means torotate the matrix through an entire revolution'to operate on one blank and stop the matrix in a predetermined position ready to operateon a succeeding blank; V

9. A shoe blank skiving machine, having, in combination, a skiving knife,- a pressure roll, a die roll having a matrix rotatably mounted on its surfaee,rmeans to rotate the rolls continuously, means to advanceblanks to the rolls intermittently, means to rotate the matrix on the die roll intermittently, and means to varythe time of operation of the matrix relatively to the operation of the rolls. I a I 10. A shoe blank skiving machine, having, in combination, a die roll, apressure roll, a skiving knife, means for driving the rolls continuouslyya matrix mounted on the die roll, means for relatively rotating the matrix and dieroll, and mechanism'for, feeding blanks to the rolls in timed relation to the operation of the matrix.

*of the sole.

12. A sole skiving machine, having, in combination, a.d1e:roll,' a pressure roll,- .a' skiving knife, means .to operate the rolls, a

mechanismfor driving thematrix having provision for adjustment whereby thefposition of engagement of the matrix With the sole may be varied for skiving different kinds of soles. a f I 13. A sole skiving machine,-hav ing, in combination, a skiving knife, a pressure roll, a die roll having a uniform diameter for evening soles, means for rotating the rolls, and a matrix movablymounted on the die roll to coeperate With the die roll to position a sole to be skived and evened simultaneouslyas it is advanced across the skiving knife.

14. VA shoe blank skiving machine, having, in combination, a die roll, a'skiving knife, a pressure roll shaft, a series of toothed feeding disks mounted for 'movement transversely of said shaft, and means forindee. pendently, driving each disk. 3 j p 15. A skiving machine, having,in combi-' nation a skiving knife,,a die roll, a pressure roll shaft, a hollow pressure roll yieldingly mounted for transverse movement on: said shaft, peripheral teeth'on said pressure roll,

. I .90 11. A sole SlIlViIl machine 'havin 1n matrix movably mounted on the die roll, and

a plurality of gears meshing With'the, teeth on the pressure roll and arranged about the roll to holdit in position uponthe work, and means for driving the rolls. I

' 16. A skiving machine, having, in combination, a skiving knife, a dieroll, a pressure roll shaft, a hollow pressure roll mounted for movement transversely on said shaft, peripheral teeth on said pressure roll, a plurality of gears arranged around the pressure roll in mesh with its teeth, one of said gears being positively driven to drive the pressure roll, and yielding means operating upon another of said gears to press the roll against the Work.

17. A skiving machine, having, in combination, a skiving knife, a die roll, a pressure roll shaft, a plurality of toothed feeding disks mounted on the shaft, a plurality of sets of gears arranged around the feeding disks with one gear of each set in mesh with each feeding disk, one set of said gears being positively driven to drive the disks and springs supporting another set of said gears to press the disks against the work.

18. A skiving machine, having, in combination, a skiving knife, a die roll, a pressure roll shaft, a plurality of toothed disks mounted for transverse movement on said shaft, a pluralityv of gears in mesh with each disk and arranged around its periphery, means for driving the disk, and a spring operating upon each disk to press it against the work.

19. A skiving machine, having, in combination, a skiving knife, a die roll, a feed roll provided with a series of teeth on its periphery, each of said teeth having only a portion of its crown pointed, and means for driving the rolls.

20. A skiving machine, having, in combination, a skiving knife, a die roll, a feed roll provided with a series of teeth on its periphery, each of said teeth having only a portion of its crown pointed, means for yieldingly forcing the feed roll against the work, and means for driving the rolls.

21. A skiving machine, having, in combination, a skiving knife, a die roll, a pressure roll having teeth around its periphery, part of the crown of each tooth being extended to form a sharp point, and the other part being fiat to form a stop to limit the penetration of the point into a blank, and means for driving the rolls.

22. A skiving machine, having, in combination, a skiving knife, a die roll, a pressure roll shaft, a pressure roll consisting of a plurality of disks mounted on said pressure roll shaft, the periphery of each disk being provided with teeth, the crown of'each tooth having a point and a fiat face, and means for driving the rolls. 7 V

23. A skiving machine, having, in combination, a skiving knife, a die roll, a pressure roll shaft, a pressure roll consisting of a plurality of disks mounted on said pressure roll shaft, the periphery of each disk being provided with gear teeth, a portion of the crown of each of said gear teeth being pointed, a driving gear in mesh with each disk, andmeans for operating the driving gear and the die roll. A 1

24. A skiving machine, having,'in combination, a die roll and a pressure roll arranged with their peripheries in close proximity, a skiving knife having its cutting edge proj ecting in between the rolls, and a knife carrier on which' the knife may be clampedin adjusted position, said carrier being constructed and arranged to be bodily moved so that the'knife while on the carrier may be withdrawn from and inserted between the rolls without requiring a readjustment.

25. A skiving machine, having, in combination, a die roll and a pressure roll arranged with their peripheries in close proximity, a skiving knife having its cutting edge pro"- j ecting in'between the rolls and a knife carrier'on which the knife may be clamped in any adjusted position, the u'ppe'r part ofv said carrier being arranged to be bolted to the lllitClllIlGflZtIIM-B, and the lower part of the carrier having a linked connection with the frame whereby the knife may be withdrawn froni and insertedbetween the rolls while attached to the carrier. v

A sole skiving machine, having, in combination, a skiving knife, pressure and die rolls, a feed table, means for simultaneously feeding right and left shoe soles to the rolls, and means for supporting the right and left soles in separate stacks on the table comprising adjustable side plates for transversely positioning the soles in the stacks, and a pressure plate for each stack to hold the soles down upon the table.

27. A sole skiving machine, having, in combination, a die roll, a pressure roll, a skiving knife, a feeding table, means for feeding blanks from thetable to the rolls, and means for supporting blanks in a plurality of stacks upon the table in position to be operated upon by the feeding means comprising side gages for determining the transverse position of the stack, a pressure plate for holding each stack pressed upon the table, a pair of followers for supporting the 7 pressure plates, and means by which the presser plates may be adjusted transversely of the followers to provide for different sizes of blanks. r

28. A skiving machine, having, in combination, a skiving knife, a die roll, a pressure roll, a feed table, a magazine for separately positioning right and left soles in stack formation upon the table, means for continuously rotating the rolls, and means operating in timed relation to the rotation of the rolls for simultaneously advancing a blank from each'stack to the rolls.

29. A skiving machine, having, in combination, adie roll, a pressure roll, askiving knife afeed table rovided With a series of perforations, means for creating a suctlon' through said perforations to flatten a blank on said table, and means for advancing the blank across said table to the rollsl V V 30. A s-kiving machine, having,"in combination, a die roll, a pressure rol1,a skiving knife, a feed table provided with a series of perforations, means for advancing blanks across the tableto the rolls, and means toposition blanks on the table above said perforations, comprising sid gages'for determining the transverse position on the table, and means to create a suction through said perforations to hold ,theblank in position while it isbeing advanced to the rolls.

8].. A skiving machine, having," in combi-' nation, a die roll, a pressure roll, a skiving knife, a perforated feed table, means for transversely positioning a plurality-of-blanks arranged in stack formationabove the perforations in the table, means for engaging theends of the blanks to longitudinally position them :and advance them to the rolls, and means to create a suction through the said perforations to flatten the bottom blank of the stack on the table and to draw the next to the bottom blank down on the table after the bottom blank has'been advanced tovthe rolls. V j r '32. A" sole skiving machine, having, in

between the rolls.

combination, a die roll, a pressure roll, a V

skiving knife, a perforated feed table, side gages for transversely positioning a plurality of blanks arranged in stack formation above the perforations in the table, a pusher plate for advancing blanks from the bottom of the stack to the rolls, means to create a suction through said perforations to flatten thebottom blank on the table, and a presser' plate acting on the stack of blank the stack down on the table.

33. A shoe blank skiving machine having, in combination, blank feeding and skiving s. to press devices including "a skiving knife, a die roll less in circumference than the length of the blank to be operated upon and a pressure roll past which the blank is fed for its entire length, a matrix rotatably mounted on the die-roll, and means forcausmg the matrix blank to be operated upon and a pressure roll past which the blank is fed for its entire length, a matrix 'rotatably mounted on the die roll, and means for rotating the matrix once only during the passage of the blanks ELMER E.-LANE. 

